condition mean min max ZT0-3 878.05 878.05 878.05 ZT4-7 542.9 542.9 542.9 ZT8-11 694.9 694.9 694.9 ZT12-15 635.5 635.5 635.5 ZT16-19 894.15 894.15 894.15 ZT20-23 1134.2 1134.2 1134.2